A Holly, Jolly Christmas - S4.E12

Holiday festivities are underway in the Kelly household with Jean making her famous punch loaf to Grace's dismay and Jimmy's delight. Floyd is so much in the holiday spirit that he's giving away the entire inventory at the pharmacy, and an exasperated Russell decides to get rid of him by sending him on a cruise. Grace gets suspicious of Quentin's mellow mood and at first thinks that he's been drinking beer with his friends. When it dawns on her that he's been smoking pot, she fears that she's about to see him repeating all her teenage mistakes and decides that ""tough love"" is the only way to handle the situation.